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Article Dans Une Revue Optics Express Année : 2007

Unidirectional excitation of surface plasmons by slanted gratings

Nicolas Bonod
E. Popov
  • Fonction : Auteur

Résumé

Surface plasmon excitation by normally incident light on surface-relief metallic diffraction gratings is studied numerically. Predominantly unidirectional excitation is achieved with a grating of either a slanted lamellar or an inclined sinusoidal groove profile, both having shallow depths. Maps of Poynting vector illustrate that the energy flow turns from normal incidence in the far-field region to a pattern almost parallel to the grating surface in the required direction of excitation of a single SPP wave.
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Dates et versions

hal-00223014 , version 1 (30-01-2008)

Identifiants

  • HAL Id : hal-00223014 , version 1

Citer

Nicolas Bonod, E. Popov, Lifeng Li, B. Chernov. Unidirectional excitation of surface plasmons by slanted gratings. Optics Express, 2007, 15 (18), pp.11427-11432. ⟨hal-00223014⟩
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